Benchmark: testtesttesttesttestv

Script Preparation code:

var o = {x: 100}

Tests:

delete
delete o.x
undefined
o.x = undefined

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
delete
undefined

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.75 Safari/537.36

Browser/OS: Chrome 100 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
delete	16067546.0 Ops/sec
undefined	8225694.0 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated 2 months ago):

LLMs can make mistakes. Check important info.

**Overview**

MeasureThat.net is a website that allows users to create and run JavaScript microbenchmarks. The provided benchmark definition json and individual test cases represent a simple benchmarking scenario. We'll break down what's being tested, the options compared, and their pros and cons.

**Benchmark Definition**

The benchmark definition json contains the following information:

* **Name**: A unique name for the benchmark.
* **Description**: A brief description of the benchmark (in this case, a simple string).
* **Script Preparation Code**: The JavaScript code that's executed before running the benchmark. In this case, it initializes an object `o` with property `x` set to 100.
* **Html Preparation Code**: An optional field for customizing the HTML environment. Since it's null in this example, the default settings are used.

**Individual Test Cases**

The benchmark has two test cases:

1. **delete**
	* **Benchmark Definition**: The JavaScript code being tested: `delete o.x`
2. * undefined *
	* **Benchmark Definition**: The JavaScript code being tested: `o.x = undefined`

**Comparison of Options**

In this simple example, the options being compared are:

* **delete**: Directly deleting the property `x` from object `o`.
* **undefined**: Setting the value of property `x` to `undefined`.

Pros and Cons:

* **delete**:
	+ Pros: Fastest execution time (likely because it's a simple property deletion).
	+ Cons: May not be supported in older browsers or environments.
* **undefined**:
	+ Pros: More explicit and potentially safer than directly deleting the property.
	+ Cons: May incur additional overhead due to the assignment operation.

**Library Usage**

There is no library usage mentioned in this benchmark. However, it's worth noting that MeasureThat.net uses a custom JavaScript engine to execute benchmarks, which may include optimizations or features not available in standard browsers.

**Special JS Features/Syntax**

This benchmark does not use any special JavaScript features or syntax beyond the basic language.

**Other Alternatives**

If you wanted to compare similar operations using different approaches, you might consider:

* Using a different data structure (e.g., an array instead of an object)
* Testing the result of the operation (e.g., verifying that `o.x` is indeed deleted or set to `undefined`)
* Using a different property name or value
* Adding additional logic before or after the deletion operation (e.g., logging, caching, etc.)

These alternatives would require modifying the benchmark definition and test cases accordingly.

Related benchmarks:

testtesttesttesttestv (version: 0)

hihihihihi

Comparing performance of: delete vs undefined

Created: 2 years ago by: Guest

Jump to the latest result

delete

undefined

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 2 months ago):